pitrou opened a new pull request, #51758:
URL: https://github.com/apache/arrow/pull/51758

   ### Rationale for this change
   
   Our JSON parser is inherently recursive, and a crafted JSON document with 
huge nesting can send it into a stack overflow.
   
   Given that real-world JSON files will not have thousands levels of nesting, 
we limit the JSON nesting to an arbitrary value of 1000.
   
   ### Are these changes tested?
   
   Yes, by new tests.
   
   ### Are there any user-facing changes?
   
   **This PR contains a "Critical Fix".** A crafted JSON document with a large 
nesting depth could trigger a denial of service through stack overflow.
   
   ### Was AI used for this PR?
   
   **PR code and description written by:**
   
   - [x] Human
   - [ ] AI
   
   **Reviewed before submission by:**
   
   - [x] Human (self-reviewed)
   - [ ] AI
   - [ ] Not reviewed
   


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